Tuesday, October 8, 2013

Random single user mode stuff

How to boot s390x in single user mode


Connected to server x.x.x.x

zPXE MENU
---------
** Error connecting to server: no profiles found **
1. Exit to CMS shell [IPL CMS]

Enter Choice -->
or press to boot from disk [DASD 2xxx]

Booting from DASD 2xxx...
00: zIPL v1.8.2-36.el6 interactive boot menu
00:
00:  0. default (2.6.32-131.39.1.el6.s390x)
00:
00:  1. 2.6.32-131.39.1.el6.s390x.debug
00:  2. 2.6.32-131.39.1.el6.s390x
00:  3. 2.6.32-131.0.15.el6.s390x.debug
00:  4. linux-2.6.32-131.0.15.el6.s390x
00:
00: Note: VM users please use '#cp vi vmsg '
00:


#cp vi vmsg  1 single       // should do the trick



How to boot ppc64 in single user mode

When grub is used this part is pretty simple.
But when yaboot is used its a little different


Config file read, 1024 bytes

Welcome
Welcome to yaboot version 1.3.13 (Red Hat 1.3.13-14.el5)
Enter "help" to get some basic usage information
boot:


linux single  // should do the trick
                     // came across another time where selinux blew up . used enforcing=0



How to boot arm in single user mode

coming soon


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